/Engine/Plugins/Runtime/ProceduralMeshComponent/Source/ProceduralMeshComponent/Public/ProceduralMeshComponent.h
Clear a section of the procedural mesh. Other sections do not change index.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Components|ProceduralMesh") void ClearMeshSection ( int32 SectionIndex )